Robot lawnmower shows signs of water inside the housing after heavy rain or washing; may behave erratically.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety first: Turn OFF the mower, disconnect the battery, and do not charge or operate until fully dry.
- Dry the unit: Open the housing and gently dry visible water with a lint‑free cloth. Allow the mower to air‑dry indoors for at least 24–48 hours.
- Inspect seals: Check rubber gaskets around the top cover, control panel, and cable entries. Replace any torn or flattened seals.
- Avoid pressure washing: Clean the mower only with a damp cloth and low‑pressure water as recommended by Ecovacs.
- Check for corrosion: Look for white/green deposits on connectors and boards. Light corrosion can sometimes be cleaned with isopropyl alcohol.
If the mower continues to malfunction after drying, water may have permanently damaged the mainboard or sensors, which will need replacement.
Repair Difficulty
Required Part
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